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Abstract

In this paper we present a novel mobile buddy finder, that combines the advantages of a mobile camera device (such as a smartphone) with traditional large-scale paper maps. We applied a Magic Lens approach that uses a mobile camera-display-unit (such as a smartphone) as a lens to provide a dynamic overlay on a traditional paper map. Paper maps are still superior in some aspects to their digital counterparts. They provide highresolution, large-scale information with zero power consumption. Using a mobile camera-display-unit as a lens over a city map, a user can easily browse the position of her buddies without cumbersome scrolling, panning or zooming of a digital map on a small screen. We explain the main concept of this idea and present first results with a fully implemented prototype.